Tides Today & Tomorrow in Largo Sound, Key Largo, FL

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Largo Sound, Key Largo, FL.
Next low tide : in 3h 28m at 11:27 pm (0.4 ft)
Next high tide (tomorrow) : 4:42 am (0.8 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:57 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8723651
Common Questions About Tides

Largo Sound, Key Largo, FL Tides - Apr 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:001.010:281.04:12-0.24:36-0.36:136:37New Moon1Fri
2Sat10:471.011:181.15:03-0.25:25-0.36:126:38New Moon2Sat
3Sun11:341.05:53-0.26:14-0.46:116:38New Moon3Sun
4Mon12:081.012:211.06:43-0.27:03-0.36:106:38Waxing Crescent4Mon
5Tue12:581.01:100.97:33-0.17:55-0.36:096:39Waxing Crescent5Tue
6Wed1:491.02:000.98:260.08:49-0.26:086:39Waxing Crescent6Wed
7Thu2:430.92:540.89:230.19:48-0.16:076:40First Quarter7Thu
8Fri3:410.83:530.710:250.210:520.06:066:40First Quarter8Fri
9Sat4:430.84:580.711:310.211:580.16:056:41First Quarter9Sat
10Sun5:490.76:060.712:360.26:046:41First Quarter10Sun
11Mon6:500.77:080.71:010.11:340.26:036:42Waxing Gibbous11Mon
12Tue7:430.78:020.71:570.12:250.26:026:42Waxing Gibbous12Tue
13Wed8:280.88:480.82:450.13:090.16:016:42Waxing Gibbous13Wed
14Thu9:070.89:290.83:290.13:480.16:006:43Waxing Gibbous14Thu
15Fri9:430.810:070.84:080.14:240.05:596:43Full Moon15Fri
16Sat10:190.810:440.94:450.14:590.05:586:44Full Moon16Sat
17Sun10:530.811:200.95:200.15:320.05:576:44Full Moon17Sun
18Mon11:280.811:570.95:540.16:040.05:566:45Full Moon18Mon
19Tue12:030.86:280.16:370.05:566:45Waning Gibbous19Tue
20Wed12:350.912:390.87:030.17:130.05:556:46Waning Gibbous20Wed
21Thu1:160.81:170.87:400.27:530.05:546:46Waning Gibbous21Thu
22Fri1:590.82:000.78:240.28:410.05:536:47Waning Gibbous22Fri
23Sat2:490.82:510.79:160.29:380.15:526:47Third Quarter23Sat
24Sun4:450.84:530.711:180.211:450.16:517:47Third Quarter24Sun
25Mon5:470.86:040.712:270.26:507:48Third Quarter25Mon
26Tue6:520.87:160.812:550.11:340.16:497:48Third Quarter26Tue
27Wed7:530.88:220.92:020.02:350.06:497:49Waning Crescent27Wed
28Thu8:500.99:220.93:030.03:30-0.16:487:49Waning Crescent28Thu
29Fri9:430.910:171.03:59-0.14:22-0.26:477:50Waning Crescent29Fri
30Sat10:341.011:091.04:52-0.15:13-0.36:467:50New Moon30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8723651)

Common Questions About Largo Sound, Key Largo, FL Tides

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What time does the tide turn (slack tide) in Largo Sound, Key Largo, FL today?

Slack tide in Largo Sound, Key Largo, FL is approximately 2:04 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Largo Sound, Key Largo, FL?

Largo Sound, Key Largo, FL is currently in a neap phase. Tonight's moon is 46% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are Largo Sound, Key Largo, FL tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Largo Sound, Key Largo, FL?

Tide predictions for Largo Sound, Key Largo, FL come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Largo Sound, Key Largo, FL?

Tide data for Largo Sound, Key Largo, FL is sourced from NOAA Station #8723651. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8723651.

What is the moon phase in Largo Sound, Key Largo, FL tonight?

Tonight the moon over Largo Sound, Key Largo, FL is First Quarter (46% illuminated). This places Largo Sound, Key Largo, FL in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA